81306064

素因数分解:

$2^4\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1129}}^1$

素因数の和:1787

約数の個数: 40

約数和(自身を含む): 180474560

約数和(自身を除く): 99168496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 643, 1129, 1286, 2258, 2572, 4501, 4516, 5144, 7903, 9002, 9032, 10288, 15806, 18004, 18064, 31612, 36008, 63224, 72016, 126448, 725947, 1451894, 2903788, 5081629, 5807576, 10163258, 11615152, 20326516, 40653032, 81306064]

約数ペア:

[(1, 81306064), (2, 40653032), (4, 20326516), (7, 11615152), (8, 10163258), (14, 5807576), (16, 5081629), (28, 2903788), (56, 1451894), (112, 725947), (643, 126448), (1129, 72016), (1286, 63224), (2258, 36008), (2572, 31612), (4501, 18064), (4516, 18004), (5144, 15806), (7903, 10288), (9002, 9032)]